Die-separating means



DIE SEPARATING MEANS Filed'Dec 12. 1924 Sm. F, 192$. I

all

unit so era-rs rarest OFFICE. V

BURY BARREL FOUNDRY AND Il-EACFIINE COMPANY, OF

W'AIERBURY, CONNECTI- OUT, A. CORPORATION OF CONNECTICUT.

DIE-SEPARATING MEANS.

Application filed December 12, 1924. Serial No. 755,524.

My invention relates to new and useful improvements in die separatingmeans, its principal object being to provide simple mechanism for separating the dies of an open die header, upsetting machine, or the like.

Among other aims and objects of my invention may be recited the provision of a device of the character mentioned, which will positively separate the dies when the same are in substantial register with the feed station and utilize for the purpose motion of other essential parts of the header or the like, as well as to produce these results with a minimum number of parts arranged so as to be compact and connected with a standard form of header or the like with very few changes or modifications and at slight relative cost.

The details and arrangement of parts will be apparent from an inspection of the accompanying drawings, in connection with the description hereinafter contained, and wherein an embodiment of the invention is disclosed for the purpose of'impsrting an understanding of the same.

l laving more particular reference to the drawings ann in connection with which like reference characters refer-to corresponding parts in a several figures;

Figure 1 is a front elevation of a pair of dies for heading machine, upsetting machine, or the like, and adjacent mechanism, with my improved separating means connected therewith;

Figure 2 is a plan view thereof, partly in section;

Figure 3 is a fragmentary detail View illustrating the relative position of the parts and substantially when the dies are closed in register with the upsetting station; and

Figure is a fragmentary cndelevation of the dies and some of the adjacent parts illus trating the application of my invention to the underside of the dies. 7

Having more particular reference to the drawings, the numerals 10and 11 represent the dies, which are of the usual form, with angular faces 12 at the corners, which unite to form a V-shape groove, substantially as shown in Figure 3, and 13 is a piece of wire which enters between the dies at-the feed station, as shown in Figures 1 and 4 when the same are separated and is gripped between the dies at the upsetting station, substantially as shown in Figure 3.

The dies are supported upon a bed plate 1%, are covered upon the top side by the moi'able cap 15 and held against endwise movement in one direction by the plates 16 and 17, or other means, not material to this invention.

Upon one side of the die 11 is a filler block 28 and upon the opposite side of the die 10 is a filler block 31.

Movably mounted inthe frame 33 of the header, upsetting machine, or the like, or in any other adjacent part, are the plungers 27,.vhich are connected at their inner end by the gripping block 26, secured thereto by screws 32, or the like.

Y in Figure 1 all of the parts are illustrated in the relative positions occupied by them when the wire 13 is being advanced between the dies. W hen the'wire has been advanced the desired length, the plungers 27 move inwardly and the inner face of the gripping block engages the outer face of the filler block 28, and moves and closes the die 11 onto the wire 13 and into contact with the inner face of the die 10.

The continuation of this movement cuts off a length of the-.wire 13 and moves it, gripped between the dics,jto the upsetting station, which is coincident with and perpendicular to the line fiG-X, a blank at this station being illustrated in Figure '3, and where the upsetting operationson the blank are" performed. Y

Thereafter the dies are returnedto the position shown in Figure 1, through the member 34; and the plungers 27 and gripping block 26 are withdrawn to their original positions.

The limit of movement of these dies in this latter direction is determined by the to the top of the dies;

contact of the lip 30 upon the filler block 28 with the lip 29 upon the bed plate 14:, or by other similar means, as may seem desirable.

The mechanism above described, and its method of operation are old and well known in the art and constitute no part of the present invention, which relates essentially to the means for separating the dies, at the feed station.

Movably mounted in a recess 20, in the underside of the cap 15, is the slide l9, hav- .ing a lip 2i at its outer end which projects into a groove 25 in the gripping block 26. In one face of this cam slide is a recess 21 having a cam face 22 at one end thereof.

Resting within the header groove formed by two of the angular faces 12, at the cornor of the dies 10 and 11, and projecting into the recess 21, are one or more cam rolls 23.

Movement of the cam slide in the cap is derived from the plungers '27 through the gripping block 26. Then the latter is withdrawn to the position approrimating that shown in Figure l, the cam face 22 engages the cam roll 23 and forces the same downwardly and thereby separates the dies 10 and 11, the member 34 yielding suiliciently to permit the action. hen the gripping block 26 moves in the opposite direction, motion is transmitted to the cam slide 19 before the gripping block engages the filler block 28, so that the cam roll 23 is released from contact with and pressure from the cam face 22 thereon.- As the dies 10 and 11 move toward each other nearithe feed station and thereafter as a unit, toward theupsetting station, the cam roll 23 is moved upwardly into the recess 21 and rides in the cam groove between the dies 10 and'll until the lips 29 and 30 contact with each other. The die 11 now comes to a full stop and the additional movement of the plunger-s 27 draws the cam face 22 on the cam slide 19 against the cam roll 23nand forces it downwardly and separates the dies 10 and 11. v 1 v In Figures 1', 2 and 3, I have illustrated my improved die separating mechanism as applied to the top of the dies but it will operate equally as wellif applied to the underside thereof. or if desired, it may be used upon both the top and underside thereof. 7

I11 Figure 4, I have illustrated my invention as applied to the underside of in which case the cam slide 19 engages the groove 25 in the undersideof the gripping block 26 and is movable in a recess in the topof the bed plate 14;,instead of the underside of the movable cap 15; In all other respects the mechanism is constructed and operates in the same manner actuatedby the die moving means,

the dies,

as if applied,

Having described my invention, what I new and desire to secure by Letters.

claim as Patent, is:

1. Means for separating, at. a predetermined station, the dies of a heading machine or the like, that travel from one station to another and have faces thereon which co-operate to form a groove when the dies are adjacent to each other, comprising a movable part; amember in said, groove; and means for imparting a reciprocatory movement to said part, substantially parallel with the path of movement of the dies, said reciprocatory movement being so timed that subsequent to the arrival of the dies at such station said means will continue its movement in one direction and thereby apher that travels with the dies; and movable means actuated from the die moving means subsequent to the arrival of the dies at such station for causing the member to travel in a pathat substantially a right angle to the path of movement and thereby separate the same.

3. In combination with the dies of a heading machine orthe like that have faces of the dies "thereon which co-operate to form a groove when the dies are adjacent to each other; of means for positively moving the same in one direction; a member that projects into the said groove; and means, for moving such member in a path at substantially a right angle to the dies, connected with and I whereby the dies are separated at a predetermined station.

4. In a device of the class described,

7. wherein heading dieshaving faces thereon which co-operateto form a groove when the dies are adjacent to each other are held against up and down movement by suitable supports; a member for imparting movement to the dies inone direction between its supports, the length of stroke of'which is greater than that of the dies; a part mov-V ably mounted within one of said supports adjacent to the dies and connected with said die moving means; and an element that projects intothe said groove, having an operative engagement with said part, and

the spirit and.

moved thereby between the .dies when the latter are ,at substantially the :teed station and subsequent to the limit of movement of the dies.

:5. En a device of the class described having a feed station, wherein heading dies with corner faces which co-operate to form a groove when the dies are adjacent to each other, are held against up and down movement by suitable supports, one of which is a movable cover having a recess in the under face thereof; a slide within the recess; a member for imparting movement to the dies, between its supports, in one direction and from which motion is also imparted to the slide with a length of stroke greater than that of the dies; and an element that proj ects into the said groove, and when the dies are substantially in register with the feed station is moved by the slide, subsequent to the limit of movement of the: dies between the dies and separate the same.

6. In combination with the dies of a heading machine or the like the corner faces of which co-operate to form a groove when the dies are adjacent to each other; that travel between two stations, one designated the feed station and the other the upsetting station, of stop means for limiting the movement thereof in one direction, when the opening therebetween is adjacent to the wire feed line; means for moving the dies from such position toward the upsetting line, said means being in motion before the dies begin to move and after they have come to a rest position through said stop means; a member, independentofthe dies, having an operative engagement with the die moving means; and an element in the groove at the corners of the dies which is projected by said member between the dies and separates the same after the dies have come to their said rest position.

7. In combination with dies of a heading machine or the like; means for positively moving the same in one direction, the limit of movement thereof being greater than that of the dies; a member that travels with the dies; and mechanism connected with said means that engages the member and moves the same in a path at substantially a right angle to the path of movement of the dies after the dies have reached the limit of their stroke in one direction. r

S. In combination with dies of a heading machine or the like; a reciprocating mechanism for positively moving the dies in one direction, the length of stroke of which is greater'than that of the dies; a member that travels with the dies; a cam slide connected with the reciprocating mechanism, engaging the member and moving the latter in a path at substantially a right angle to the path of movement of the dies during a portion of the stroke of the reciprocating mechanism and subsequent to ithelimit of movement of the-dies. v

9. In a device of the class described; pair or" :dies or the like that travel between the feed and upsetting stations; 3a reciprocating member that moves the dies to the upsetting station, such member continuing its movement in :one direction after the dies have returned to the feed station; and means actuated in part by the reciprocating menr her for separating the dies at the feed station, comprising one or more elements that travel with the dies and a slide movable substantially parallel with the path of movement'of the dies and having a cam face which engages said elements.

10. In adevice of the class described; a pair of dies that are adjacent to a feed line in one of their positions; supports for the dies; means for moving the dies positively in one direction, comprising in part a reciprocating member; mounted in one of the supports and having an intermeshing engagement with the 'reciprocating member; and one or more elements that travel with the dies during their movement, and when the same are substantially in register with the feed line are engaged by the cam upon said slide and moved so as to separate said dies.

11. In a' device of the class described; a pair of dies; supports for the dies; a member that travels with thedies, means for moving the dies positively in one direction comprising in part a reciprocating member; and a cam slide movably mounted in one of the supports and having engagement with the reciprocating 'member said cam slide having a recess therein one wall of which forms a cam and into which projects the said member that travels with the dies.

12. In a device of the class described; a pair of dies; supports for the dies;a memher that travels with the dies means for moving the dies positively in one direction, comprising in part a reciprocating member; and a cam slide movably mounted in one of the supports and having engagement with the reciprocating member, said cam slide having a recess therein, one wall of which forms a cam and into which projects the said member that travels with the dies, and having a lip at one end which projects into a recess in the reciprocating member.

13. In combination; dies for a heading machine or the like mounted so as to have a reciprocating movement in one plane, and held against movement in other directions by suitable supports, one of which has a recesstherein adjacent to the dies; a slide mounted in the recess also having a recess therein, one Wall of which forms a cam opposite to the dies; one or more cylindrical rolls within the. groove formed by the corners of the dies, that project into the a cam slide movably &

recess in the slide; and positive means for imparting a reciprocating movement to the slide.

14. In combination With the dies of a heading machine or the like; of means for imparting movement thereto in one direction, the length of the travel thereofbeing greater than that of the dies; and means actuated by the die moving means, rating the dies during that travel of the die moving means as isin exeess of the travel of the dies;

In testimony whereof, I have hereunto affixed my signature.

RICHARD LESTER WILOOX.

for sepaportion of the 1 

